Run results for: index vs startsWith

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36

Browser: Chrome 117

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 6 months ago

Test name	Executions per second
lastIndexOf	53482760.0 Ops/sec
startsWith	154130500.0 Ops/sec

Tests:

lastIndexOf
var str = "Hello world, welcome to the universe."; var n = str.lastIndexOf("welcome");
startsWith
var str = "Hello world, welcome to the universe."; var n = str.startsWith("welcome");